Yeah, Beaverboy, I saw something similar on The Animal Planet (can't recall the specific show) a few weeks ago. Some guy owned 5 or more tigers down south (I want to say it was Texas, but I could be wrong) and would go into the cages and play with them. If they started playing too rough he would slap them moderately on their nose to snap them out of it! But like your above video, he had been with them their whole life and had a strong relationship, so there was virtually no danger of them attacking him (assuming they were well fed, which was the case) as prey. The problem is more the accidental stuff - - - a 400-700 lb cat that's playing, or even just affectionally pushing up against you like cats like to do, can crunch a few ribs pretty easily. Another similar show shot in Florida showed one of the trainers in a leg cast because the tiger in that case had affectionately laid down halfway on him and his was at a bad angle and it dislocated his knee.